Civil Web Kit

Stopping Sight Distance & Vertical Curve Calculator

Road & Driver Parameters

Design Speed (V, km/h)

Reaction Time (Rt, seconds)

Sight Distance (m)

Vertical Alignment

Initial Grade (g1, %)

Final Grade (g2, %)

Manual Calculation Parameters

Deceleration Coefficient (d)

Driver Eye Height (H1, m)

Object Height (H2, m)